2,2,4-Trimethylpentane
Alias: Isooctane
Chemical formula: 2(CH3)2CHCH2C(CH3)3
Molecular weight: 2114.23
CAS registration number: 2540-84-1
Melting point: -107.4℃
Boiling point: 99.3℃
Density: 0.6919
Flash point: -12℃
Hazard symbol: Flammable
Properties: Colorless transparent liquid
Isooctane is a colorless transparent liquid with a melting point of -107.4℃ and a boiling point of 99.2℃. Solubility: insoluble in water, soluble in ether, easily soluble in alcohol, acetone, benzene, green imitation, etc. It is used in organic synthesis, as a solvent and a comparison sample for gas chromatography.
2,2,4-Trimethylpentane, commonly known as isooctane, is an isomer of octane. Isooctane has good shock resistance when burning in the cylinder of an internal combustion engine. It is a standard for gasoline anti-knock performance, and its octane number is set at 100. It is an excellent engine fuel.
Storage: sealed and cool.
Use: Organic synthesis. Solvent. Mix with n-heptane in proportion to determine the octane number of fuel oil. Gas chromatography analysis standard. Diluent.
Safety measures: Store in a low-temperature and ventilated place, away from fire and heat sources. Store separately from oxidants, edible chemicals, etc. It is forbidden to use tools that are easy to produce sparks.
Fire extinguishing: foam, carbon dioxide, dry powder, sand and soil. Water column is prohibited.
Use of isooctane
1.Isooctane is a standard substance for testing the anti-knock performance of gasoline. The octane numbers of isooctane and heptane are set at 100 and 0 respectively. If the anti-knock performance of a gasoline sample in a single-cylinder engine is equivalent to that of an isooctane-heptane mixture of a certain composition under the specified test conditions, the octane number of the sample is equal to the standard
2. Used in organic synthesis, as a solvent and a comparative sample for gas chromatography. It has good anti-vibration performance when burning in the cylinder of an internal combustion engine and is an excellent engine fuel. It is a standard fuel for determining the octane number (anti-vibration) of gasoline, mainly used as an additive for gasoline, aviation gasoline, etc., and a non-polar inert solvent in organic synthesis.
3. Used in organic synthesis, as a solvent and a comparative sample for gas chromatography.